Volume 19 (1964)

No. 12 pp. 2249–2358 December
No. 11 pp. 1999–2247 November
No. 10 pp. 1757–1997 October
No. 9 pp. 1507–1756 September
No. 8 pp. 1267–1505 August
No. 7 pp. 1093–1265 July
No. 6 pp. 785–1092 June
No. 5 pp. 587–784 May
No. 4 pp. 427–585 April
No. 3 pp. 245–425 March
No. 2 pp. 147–242 February
No. 1 pp. 1–145 January